{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["GENE"], "input": "The present investigation conducted in a population of 258 dentally aware individuals in the age range 20 - 69 years , was initiated to elucidate the relationship between tobacco smoking and supragingival calculus , taking into account possible confounding factors such as age , gender , oral hygiene and gingival inflammation ."}
{"GENE": []}